[sysroot] Update Linux sysroot

This is a more minimal Linux sysroot.

Change-Id: Ibd0b320e0ec93aaa19cb156e2bd39e2f927a43e1
diff --git a/fuchsia.ensure b/fuchsia.ensure
index b11ba45..21022e9 100644
--- a/fuchsia.ensure
+++ b/fuchsia.ensure
@@ -62,4 +62,4 @@
 
 # sysroot
 @Subdir sysroot
-fuchsia/sysroot/${os=linux}-${arch} git_revision:a96053c799a0f1ad0b7e8ab8199edbfa18adcbb6
+fuchsia/sysroot/${os=linux}-${arch} git_revision:3a257b6f56d9f934e852c84c5b82f6c6b71a6182
diff --git a/fuchsia.versions b/fuchsia.versions
index 6c89a7e..1f3baaf 100644
--- a/fuchsia.versions
+++ b/fuchsia.versions
@@ -38,8 +38,8 @@
 	7885c81bdbd778d0f3ffb7b4d28f22bf6f21a53e
 
 fuchsia/sysroot/linux-amd64
-	git_revision:a96053c799a0f1ad0b7e8ab8199edbfa18adcbb6
-	ae0677829357edb199c21e76b1ea31eb8ef62817
+	git_revision:3a257b6f56d9f934e852c84c5b82f6c6b71a6182
+	IiFVaKmy2J6nGBAa91I2LqanvcDAUPjUpakpxSp4thEC
 
 fuchsia/tools/breakpad/linux-amd64
 	git_revision:9eac2058b70615519b2c4d8c6bdbfca1bd079e39